Hierarchical Z-scheme Fe2O3@ZnIn2S4 core–shell heterostructures with enhanced adsorption capacity enabling significantly improved photocatalytic CO2 reduction,CrystEngComm

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Hierarchical Z-scheme Fe2O3@ZnIn2S4 core–shell heterostructures with enhanced adsorption capacity enabling significantly improved photocatalytic CO2 reduction
CrystEngComm ( IF 2.6 ) Pub Date : 2020-11-05 , DOI: 10.1039/d0ce01462a
Zihan Zhao _{1,

2,

3,

4} , Chuanxin Shi _{1,

2,

3,

4} , Qi Shen _{1,

2,

3,

4} , Wenjuan Li _{4,

5,

6,

7} , Dandan Men _{4,

5,

6,

7} , Bo Xu _{1,

2,

3,

4} , Yiqiang Sun _{1,

2,

3,

4} , Cuncheng Li _{1,

2,

3,

4}

Affiliation

The challenge of sunlight-driven CO₂ reduction is to achieve efficient photocatalysts with exceptional molecule adsorption ability and efficient charge-separation efficiency. Herein, 3D hierarchical Z-scheme Fe₂O₃@ZnIn₂S₄ core–shell nanorods are reasonably designed and synthesized and directly used as Z-scheme CO₂ photoreduction catalysts. The Fe₂O₃@ZnIn₂S₄ core–shell nanorods exhibited a CO evolution rate of 37.13 μmol g⁻¹ h⁻¹, which is 2.15 times higher than that of the pristine ZnIn₂S₄ layers. The upgraded photocatalytic activity can be ascribed to the unique 3D hierarchical structure and efficient CO₂ adsorption capacity, as well as the improved separation efficiency of charge carriers. This work may create new opportunities for developing other highly active complex hierarchical Z-scheme photocatalysts.

中文翻译：

Z 2分层Fe2O3 @ ZnIn2S4核-壳异质结构，具有增强的吸附能力，可显着改善光催化二氧化碳的还原

阳光驱动的CO ₂还原的挑战是获得具有出色的分子吸附能力和有效电荷分离效率的高效光催化剂。在此，合理设计和合成3D分层Z方案Fe ₂ O ₃ @ZnIn ₂ S ₄核壳纳米棒，并将其直接用作Z方案CO _2光还原催化剂。Fe ₂ O ₃ @ZnIn ₂ S ₄核壳纳米棒的CO释放速率为37.13μmolg ^-1 h ^-1，比原始ZnIn ₂ S _4的释放速率高2.15倍层。增强的光催化活性可以归因于独特的3D层次结构和有效的CO ₂吸附容量，以及电荷载流子的改进分离效率。这项工作可能会为开发其他高度活跃的复杂分层Z方案光催化剂创造新的机会。

更新日期：2020-11-18

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